/* 自分史MVP ワイヤーフレーム的UI
   モノクロ + アクセント1色。影・グラデーション・絵文字なし。 */

:root {
  --bg: #ffffff;
  --text: #333333;
  --sub: #888888;
  --border: #dddddd;
  --field: #f5f5f5;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --error: #dc2626;
  --highlight: #fef9c3;

  --app-height: 100dvh;
  --app-offset: 0px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans CJK JP", "Meiryo", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow: hidden;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* 画面全体 ------------------------------------------------------------ */

.app {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--app-offset);
  height: var(--app-height);
  display: flex;
  flex-direction: column;
  max-width: 480px;
  margin: 0 auto;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

/* ヘッダー ------------------------------------------------------------ */

.header {
  flex: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

.header__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: bold;
}

.header__meta {
  margin: 2px 0 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--sub);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.header__actions {
  display: flex;
  gap: 6px;
  flex: none;
}

.notice--export {
  flex: none;
  margin: 0;
  padding: 4px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.4;
  color: var(--sub);
}

.banner {
  flex: none;
  margin: 0;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--error);
  font-size: 13px;
}

/* 年表 ---------------------------------------------------------------- */

.timeline {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px 12px 16px;
}

.timeline:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.empty {
  margin: 16px 0;
  color: var(--sub);
  font-size: 13px;
}

.year {
  margin: 0 0 12px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.year__label {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: bold;
  line-height: 1.4;
}

.year__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.event {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 8px 4px;
  font: inherit;
  color: inherit;
  cursor: pointer;
  line-height: 1.4;
  transition: background-color 600ms linear;
}

.event:hover { background: var(--field); }
.event:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

.event.is-updated {
  background: var(--highlight);
}

@media (prefers-reduced-motion: reduce) {
  .event { transition: none; }
}

.event__title {
  display: block;
  font-size: 15px;
}

.event__sub {
  display: block;
  font-size: 12px;
  color: var(--sub);
  margin-top: 2px;
}

.tag {
  display: inline-block;
  border: 1px solid var(--border);
  padding: 0 4px;
  margin-left: 6px;
  font-size: 11px;
  color: var(--sub);
  vertical-align: middle;
}

/* 質問 ---------------------------------------------------------------- */

.question {
  flex: none;
  padding: 8px 12px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.question__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.question__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

/* 入力欄 -------------------------------------------------------------- */

.composer {
  flex: none;
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.notice--mock {
  margin: 0 0 6px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--sub);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.composer__input {
  display: block;
  width: 100%;
  font-family: inherit;
  font-size: 16px; /* iOS Safariの自動ズーム防止のため16px未満にしない */
  line-height: 1.6;
  color: var(--text);
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 8px;
  resize: none;
}

.composer__input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.composer__input[disabled] {
  color: var(--sub);
}

.composer__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 6px;
}

.composer__status {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--sub);
  flex: 1 1 auto;
  min-width: 0;
}

.composer__status.is-error { color: var(--error); }

.composer__hint {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--sub);
}

/* ボタン -------------------------------------------------------------- */

.btn {
  font-family: inherit;
  font-size: 14px;
  line-height: 1.4;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  min-height: 36px;
}

.btn:hover { background: var(--field); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn[disabled] { color: var(--sub); cursor: default; }

.btn--quiet {
  font-size: 13px;
  padding: 6px 8px;
}

.btn--primary {
  flex: none;
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  font-size: 16px;
  padding: 8px 20px;
}

.btn--primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn--primary[disabled] { background: var(--sub); border-color: var(--sub); color: #ffffff; }

.btn--danger {
  border-color: var(--error);
  color: var(--error);
}

/* ダイアログ ----------------------------------------------------------- */

.dialog {
  width: min(440px, calc(100vw - 24px));
  max-height: 85dvh;
  padding: 0;
  border: 1px solid var(--text);
  border-radius: 2px;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.dialog::backdrop {
  background: rgba(51, 51, 51, 0.4);
}

.dialog[open] {
  display: flex;
  flex-direction: column;
}

.dialog__head {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

.dialog__title {
  margin: 0;
  font-size: 16px;
  line-height: 1.4;
}

.dialog__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 12px;
}

/* 詳細の中身 ----------------------------------------------------------- */

.section {
  margin: 0 0 16px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.section__title {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: bold;
  color: var(--sub);
}

.field {
  margin: 0 0 10px;
}

.field__label {
  margin: 0;
  font-size: 12px;
  color: var(--sub);
}

.field__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.evidence {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 0 0 8px;
  border-left: 1px solid var(--border);
}

.evidence__item {
  margin: 0 0 4px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--sub);
}

.evidence__excerpt {
  display: block;
  color: var(--text);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.source-text {
  margin: 4px 0 0;
  padding: 8px;
  background: var(--field);
  border: 1px solid var(--border);
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.note {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--sub);
}

.note.is-error { color: var(--error); }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

/* 編集フォーム --------------------------------------------------------- */

.form-row {
  margin: 0 0 10px;
}

.form-row__label {
  display: block;
  font-size: 12px;
  color: var(--sub);
  margin-bottom: 2px;
}

.form-row__control {
  display: block;
  width: 100%;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 6px 8px;
}

.form-row__control:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

textarea.form-row__control {
  resize: vertical;
}

/* 原文一覧 ------------------------------------------------------------- */

.input-item {
  margin: 0 0 12px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.input-item__meta {
  margin: 0;
  font-size: 12px;
  color: var(--sub);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.status-label {
  border: 1px solid var(--border);
  padding: 0 4px;
}

.status-label.is-failed,
.status-label.is-rejected {
  border-color: var(--error);
  color: var(--error);
}

/* Hidden is authoritative even for flex layouts. */
[hidden] { display: none !important; }
.header__left, .dialog__title { min-width: 0; overflow-wrap: anywhere; }
.event, .question, .note, .banner, .evidence__item { overflow-wrap: anywhere; }
.btn { min-height: 44px; }
.source-text, .field__value { font-size: 16px; }
.dialog { max-height: calc(var(--app-height) - 24px); }
@media (max-height: 560px) {
 .notice--mock span, .composer__hint, .header__meta, .notice--export { display: none; }
 .composer__input { height: 70px; }
 .question { padding: 4px 12px; max-height: 125px; overflow: auto; }
 .composer { padding-top: 4px; }
 .composer__status { max-height: 44px; overflow: auto; }
}

#api-notice { font-size: 12px; margin: 0 0 6px; line-height: 1.4; max-height: 66px; overflow-y: auto; }